Tag PyJobTransforms-02-03-76-01

- Specifically to test fork after first event for memory savings
- Also collects many other minor fixes
- EXCLUDES lightweight output file metadata patch (r731518) (PyJobTransforms-02-03-76-01)

wwwpackage PyJobTransforms
2016-04-15 Graeme Stewart <graeme.andrew.stewart@cern.ch>
	** Merge in trunk changes from r740535

2016-04-15 Graeme Stewart <graeme.andrew.stewart@cern.ch>
	** Manually patch in trunk fixes athenaMPMergeTargetSize handling (ATLASJT-298)
	*** WARNING - Do not attempt to merge r731518 onto this branch ***

2016-04-15 Graeme Stewart <graeme.andrew.stewart@cern.ch>
	** Merge in trunk changes, excluding lightweight metadata fixes

2016-04-11 Azzah Alshehri<azzah.aziz.alshehri@cern.ch>
	** Change the self merge method to save the merge information
	   * python/trfExe.py
	   - Change the stanalone variable 'myMerger'inside the method to  a class variable.
	   - Save the 'merge executor instance' you get back in the athenaExecutor _smartMerge method.
	   - Add an accessor to the base executor class, that returns the self._myMerge value.
	   * python/trfArgClasses.py
	   - Re-set 'myMerger' to the real merger executor in the actual merge.
	   - Return myMerger for each of the specific file mergers method.
...
(Long ChangeLog diff - truncated)